

package com.hazelcast.internal.management.events;

import com.hazelcast.internal.json.JsonObject;
import com.hazelcast.internal.management.events.EventMetadata.EventType;

/**
 * Represents events sent to Management Center.
 * <p>
 * Events are sent to Management Center periodically, which then informs the user about them.
 * Events can be used where a log statement normally is used. They are usually generated as
 * a result of an action that is triggered by the Management Center.
 *
 * @see com.hazelcast.internal.management.ManagementCenterService#log(Event)
 * @since 3.11
 */
public interface Event {
    EventType getType();

    /**
     * Returns when the event happened as epoch millis.
     */
    long getTimestamp();

    /**
     * Serialize the event as JSON, for sending to Management Center.
     */
    JsonObject toJson();
}
